Pola Komunikasi Kelompok pada Komunitas Pecinta Film Islami

The rapid development of films increases the birth of communities. Film lovers are one of the Islami c Film Lovers Community (KOPFI). In the Islami c Film Lovers Community a new social space is formed which influences the interaction and communication behavior between group members. The purpose of this study is to find out the process of communication and evaluation in finding the unity of opinion in the Bandung Islami c Film Lovers Community. The method used is a qualitative method with the Social Comparison Theory approach from Festinger. Data is collected through observation and interviews. The results of the study show that members of the Bandung Islami c Film Lovers Community in their activities have roles which are in accordance with the structure and level of their main tasks and functions. Communication patterns become an important tool that must be considered to maintain harmony and cohesiveness in the community of Bandung Regional Islami c Film Lovers. As a film discussion forum, Members of the Islami c Film Lovers Community evaluate and share information using various languages as group identities.AbstrakPerkembangan film yang semakin pesat mendorong lahirnya komunitas-komunitas pecinta film salah satunya Komunitas Pecinta Film Islami  (KOPFI). Di KOPFI dalam komunikasi kelompoknya terbentuk ruang sosial baru yang memengaruhi perilaku interaksi dan komunikasi antar anggota kelompok. Penelitian ini bertujuan untuk mengetahui  pola komunikasi, evaluasi diri, perbandingan dan perbaikan diri di Komunitas Pecinta Film Islami  (KOPFI) Bandung. Metode penelitian yang digunakan adalah metode kualitatif dengan pendekatan Teori Perbandingan Sosial dari Festinger. Data dikumpulkan melalui observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa anggota Komunitas Pecinta Film Islami  Bandung dalam kegiatannya memiliki peran yang sesuai dengan  struktur dan tingkatan dari tugas pokok dan fungsinya. Pola komunikasi menjadi sebuah alat penting yang mampu menciptakan atau menjaga keharmonisan dan kohesivitas di komunitas Pecinta Film Islami  Regional Bandung. Sebagai forum diskusi film, Anggota Komunitas Pecinta Film Islami  saling melakukan evaluasi dan berbagi informasi, pengetahuan dan pengalaman yang dapat menuingkatkan kemampuan masing-masing anggota, dengan menggunakan ragam bahasa sebagai identitas kelompok

Charge Transport Modulation of a Flexible Quantum Dot Solar Cell Using a Piezoelectric Effect

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Colloidal quantum dots are promising materials for flexible solar cells, as they have a large absorption coefficient at visible and infrared wavelengths, a band gap that can be tuned across the solar spectrum, and compatibility with solution processing. However, the performance of flexible solar cells can be degraded by the loss of charge carriers due to recombination pathways that exist at a junction interface as well as the strained interface of the semiconducting layers. The modulation of the charge carrier transport by the piezoelectric effect is an effective way of resolving and improving the inherent material and structural defects. By inserting a porous piezoelectric poly(vinylidenefluoride-trifluoroethylene) layer so as to generate a converging electric field, it is possible to modulate the junction properties and consequently enhance the charge carrier behavior at the junction. This study shows that due to a reduction in the recombination and an improvement in the carrier extraction, a 38% increase in the current density along with a concomitant increase of 37% in the power conversion efficiency of flexible quantum dots solar cells can be achieved by modulating the junction properties using the piezoelectric effect

Analisis pengaruh penerapan penganggaran berbasis kinerja dan pengendalian operasional terhadap efektivitas pengendalian keuangan : (studi empiris pada Pemerintah Provinsi Lampung) [Skripsi]

Ada CDvi, 69 hlm. : il. 28 cm. -- Lamp. (49 lembar

ANALISIS SEMIOTIKA IKLAN MENGAPA HARUS MELAHIRKAN ANAK KE DUNIA INI

ABSTRAK Penelitian ini berjudul “ANALISIS SEMIOTIKA IKLAN MENGAPA MELAHIRKAN ANAK KEDUNIA INI”. Iklan merupakan hasil karya yang sangat unik dan menarik, karena menuangkan gagasan dalam bentuk gambar hidup, dan disajikan sebagai hiburan yang layak dinikmati oleh masyarakat. Maka dari itu peneliti memilih iklan sebagai subjek penelitian. Tujuan diadakannya penelitian ini adalah untuk mengetahui Tanda, objek, dan Interpretan pada iklan Mengapa melahirkan anak kedunia ini, sehingga menghasilkan makna dari iklan tersebut. Penelitian ini menggunakan metode penelitian kualitatif dengan analisis semiotika Charles Sanders Peirce. Penelitian ini menggunakan teknik pengumpulan data yang digunakan adalah observasi, studi kepustakaan, dan wawancara mendalam Objek penelitian dalam penelitian ini adalah iklan Mengapa melahirkan anak kedunia ini yang akan dibahas bagaimana tanda, objek dan interpretasi yang diberikan oleh iklan tersebut, sehingga menghasilkan makna yang berhubungan dengan kehidupan yang sesungguhnya dimana dari ketiga hal tersebut saling berhubungan. Dalam iklan tersebut terdapat Objek yang sangat menonjol yaitu Bayi atau anak-anak, dimana mereka merupakan lambang masa depan umat manusia, sehingga dalam iklan ini terdapat makna yang sangat mendalam mengenai kehidupan manusia dimasa yang akan datang. Ada beberapa hal yang peneliti sarankan berdasarkan hasil penelitian yang dilakukan. Masukan untuk masyarakat adalah agar dapat memaknai iklan bukan hanya dari produknya saja, tapi bisa melihat sudut pandang yang berbeda dari sebuah iklan sehingga selain informasi produk, kita juga mengetahui pesan moral yang terdapat dalam iklan tersebut. Untuk para penonton , sebaiknya kita tidak pasif menerima apa saja yang disuguhkan oleh iklan kepada kita, tetapi bersikap lebih kritis dan menilai pesan yang sebenarnya ingin disampaikan produsen produk iklan tersebut, sehingga kita tidak mudah terpengaruh dan terprovokasi oleh sebuah iklan

Solid-state-ligand-exchange free quantum dot ink-based solar cells with an efficiency of 10.9%

While colloidal quantum dot based solar cells (CQDSCs) have recently achieved power conversion efficiencies (PCE) up to 11.3%, the CQD active layers are fabricated almost exclusively by a combined process of in situ solid-state ligand exchange (SSE) with multiple layer-by-layer (LbL) deposition, which has been a major obstacle to high-throughput processing. In this work, we developed, for the first time, high-efficiency CQDSCs without using either the SSE or LbL technique. The fabrication of n-p quantum dot junctions by SSE-free direct coating was achieved using n-type CQD ink and p-type CQD ink. The ink based devices achieved a PCE of approximate to 11%, which is comparable to the current state-of-the-art performance. The CQD inks enabled, for the first time, use of the doctor-blade coating method for device fabrication. Notably, the PCE of the bladed CQDSCs was remarkably high, at >10%, which suggests its potential use in other industrially friendly processes

Solution-processed colloidal quantum dot/organic hybrid tandem photovoltaic devices with 8.3% efficiency

High-efficiency colloidal quantum dot (CQD)/organic hybrid tandem photovoltaic devices (HT-PVs) are developed through a low-temperature solution process. PbS-CQDs and blends of PTB7-Th/PC71BM are used as the active materials for front-and back-cells, respectively. The effective series connection of the two heterogeneous sub-cells is successfully achieved using MoOx/Au/ZnO-based intermediate recombination layers (IMLs). By fine-tuning the current densities in the sub-cells and optimizing the IMLs by balancing the optical and electrical properties, HT-PVs with power conversion efficiency (PCE) of 8.27% (V-OC of 1.27 V, J(SC) of 10.36 mA cm(-2), and FF of 0.63) are achieved. Furthermore, the fabrication of HT-PVs is achievable in ambient atmospheric conditions without thermal annealing that have comparable PCE (7.64%). The PCEs exhibited by these HT-PVs are thus far the highest values reported for CQD-based tandem photovoltaic devices

PbS/ZnO Heterojunction Colloidal Quantum Dot Photovoltaic Devices by a Room Temperature Air-Spray Method

Colloidal quantum-dot-based photovoltaic devices (CQDPVs) were fabricated at room temperature in air atmosphere via a spraying technique. Lead sulfide colloidal quantum dots (CQDs) were utilized for this process and various fabrication conditions such as the spraying pressure, types of ligand molecules, duration of ligand exchange, and the band-gap of the CQDs were investigated in order to optimize the device performance. The power conversion efficiency reached 4.00% (V-OC of 0.57V, J(SC) of 11.79 mA center dot cm(-2), and FF of 0.60) when similar to 145 nm thick sprayed CQD layers were utilized; this value is comparable to that achieved with the conventional spin-coated devices. The generality of the conditions used for fabrication of the sprayed CQDPVs was demonstrated in the fabrication of various CQDs having different band-gaps (1.34-1.61 eV). This technique provides an avenue for the application of a high-throughput process for CQDPV fabrication. Because the materials used herein for device fabrication are not completely optimized, there is further scope for improving device performance

Efficient Hybrid Tandem Solar Cells Based on Optical Reinforcement of Colloidal Quantum Dots with Organic Bulk Heterojunctions

While colloidal quantum dot photovoltaic devices (CQDPVs) can achieve a power conversion efficiency (PCE) of approximate to 12%, their insufficient optical absorption in the near-infrared (NIR) regime impairs efficient utilization of the full spectrum of visible light. Here, high-efficiency, solution-processed, hybrid series, tandem photovoltaic devices are developed featuring CQDs and organic bulk heterojunction (BHJ) photoactive materials for front- and back-cells, respectively. The organic BHJ back-cell efficiently harvests the transmitted NIR photons from the CQD front-cell, which reinforces the photon-to-current conversion at 350-1000 nm wavelengths. Optimizing the short-circuit current density balance of each sub-cell and creating a near ideal series connection using an intermediate layer achieve a PCE (12.82%) that is superior to that of each single-junction device (11.17% and 11.02% for the CQD and organic BHJ device, respectively). Notably, the PCE of the hybrid tandem device is the highest among the reported CQDPVs, including single-junction devices and tandem devices. The hybrid tandem device also exhibits almost negligible degradation after air storage for 3 months. This study suggests a potential route to improve the performance of CQDPVs by proper hybridization with NIR-absorbing photoactive materials